Visual signals in fruits: adaptations and constraints imposed by mutualists and antagonists

• Applicant: Privatdozent Dr. H. Martin Schaefer
• Subject Area: Ecology and Biodiversity of Animals and Ecosystems, Organismic Interactions
• Term: from 2006 to 2010
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 24921784

• Final Report Year: 2009

Final Report Abstract

No abstract available

Publications

• 2007. The evolution of visual fruit signals: concepts and constraints. - In: Dennis, A. J., Schupp, E. W., Green, R. J. and Wescott, D. A. (eds.), Seed dispersal: Theory and its application in a changing world. CABI, pp. 59-77
  Schaefer, H. M. and Schaefer, V.
  
• 2007: Aphids do not attend to leaf colour as handicap signal, but to the handicap of reproductive investment. Biology Letters 3; 1-4
  Schaefer, H. M. & G. Rolshausen
  
• 2007: Do aphids paint the tree red? Can herbivore resistance or photoprotection explain colourful leaves in autumn? Plant Ecology 191: 77-84
  Rolshausen, G. & H. M. Schaefer
  
• 2007: Reply. How to investigate a putative signal? Stick to the right method when assessing the response of a receiver. Biology Letters 3; 152-153
  Schaefer, H. M. & G. Rolshausen
  
• 2008. Anthocyanins reduce fungal growth in fruits. - Natural Product Communications 3:1267-1272
  Schaefer, H. M., Rentzsch, M. and Breuer, M.
  
• 2008. Birds use fruit colour as honest signal of dietary antioxidant rewards. - Functional Ecology 22; 303-310
  Schaefer, H. M., McGraw, K. and Catoni, C.
  
• 2008. Fruit for health: the effect of anthocyanins on humoral immune response and food selection in a frugivorous bird. - Functional Ecology 22: 649-654
  Catoni, C , Schaefer, H. M. and Peters, A.
  
• 2008. Long-term effects of previous experience determine nutrient discrimination abilities in birds. Frontiers in Zoology 5: 4
  Schaefer, H. M., Spitzer. K. and Bairlein, F.
  
• 2009. Flavonoids enhance conspicuousness of melanin-based trait in male blackcaps but not of female homologous trait or of sexually monochromatic traits. - Journal of Evolutionary Biology 22: 1649-1657
  Catoni, C., Peters, A. and Schaefer, H. M.
  
• 2009. Geographic patterns in fruit colour diversity -do leaves constrain the colours of fleshy fruits? - Oecologia 159:337-343
  Burns, K. C , Cazetta, E.. Galetti, M., Valido, A. and Schaefer, H. M.
  
• 2009. Reliable cues and signals of fruit quality are contingent on the habitat in black elder (Sambucus nigra). - Ecology 90: 1564-1573
  Schaefer, H. M. and Braun, J.
  
• 2009. Why are fruits colorful? The relative importance of achromatic and chromatic contrasts for detection by birds. - Evolutionary Ecology 23: 233-244
  Cazetta, E., Schaefer, H. M. and Galetti, M.